مقدمة
This manual provides detailed instructions for the setup, operation, and maintenance of your Behringer PRO MIXER DJX900USB. This 5-channel DJ mixer features an INFINIUM 'Contact-Free' VCA Crossfader, advanced digital effects, and a built-in USB audio interface for versatile performance and recording capabilities.

الشكل 1: اللوحة الأمامية view of the Behringer DJX900USB mixer. This image displays the layout of all controls, including channels, EQ sections, faders, effects, and the master section.
يثبت
1. التفريغ والتفتيش
Carefully unpack the mixer and inspect it for any signs of damage during transit. Retain the packaging materials for future transport or storage.
2. توصيل الطاقة
قم بتوصيل كابل الطاقة المرفق بمدخل الطاقة الخاص بالخلاط، ثم قم بتوصيله بمأخذ كهربائي مناسب. تأكد من أن مفتاح الطاقة في وضع الإيقاف قبل التوصيل.
3. اتصالات الصوت
The DJX900USB offers multiple input and output options:
- مدخل الميكروفون: Connect a microphone to the XLR input on the top panel.
- مداخل القنوات (1-4): Each channel features RCA inputs for Line/CD and Phono sources. Connect your turntables, CD players, or other audio devices. Ensure the correct input type (Phono/Line) is selected via the switch for each channel.
- إخراج ماجستير: قم بتوصيل نظام الصوت الرئيسي الخاص بك أو amplifier to the Master RCA or XLR outputs.
- مخرجات الجناح: Connect your monitor speakers to the Booth RCA outputs.
- إخراج التسجيل: Use the Record RCA output to connect to a recording device.
4. اتصال USB
Connect the mixer to your computer (PC or Mac) using a standard USB cable. The DJX900USB functions as a USB audio interface, allowing for recording and playback of digital music files without requiring additional drivers or setup.

Figure 2: Close-up of the USB interface logo and port, highlighting the mixer's capability for direct computer connection for audio transfer.
تعليمات التشغيل
1. Channel Controls (Channels 1-4)
- يكسب: Adjusts the input level for each channel. Set to achieve a strong signal without clipping (distortion).
- المعادل (EQ): Each channel has a 3-band EQ (High, Mid, Low) with kill switches for instant frequency cut. Use these to shape the sound of each track.
- قناة فيدر: Controls the volume of the individual channel.
- Monitor Cue: Routes the channel's audio to the headphones for pre-listening.
2. INFINIUM 'Contact-Free' VCA Crossfader
The DJX900USB features a high-quality optical crossfader designed for durability and smooth operation. It includes adjustable tension and fader curve settings to suit different mixing styles.
- CF Curve: Adjusts the response curve of the crossfader, from a smooth blend to a sharp cut.
- Assign A/B: Assigns channels to either side of the crossfader.

الشكل 3: مفصل view of the INFINIUM 'Contact-Free' VCA Crossfader, showing its robust design and control elements.
3. Digital Effects Section
The mixer includes a 24-bit digital effects processor with advanced parameter control. Use the FX Select/Parameter knob to choose and adjust effects such as delay, flanger, filter, and more. The FX ON button activates the selected effect.
4. Dual Auto-BPM Counter
The intelligent dual auto-BPM counter displays the tempo of tracks on channels A and B, assisting with beat matching. The SYNC LOCK and BEAT ASSIST indicators provide visual feedback for synchronization.

Figure 4: Close-up of the dual auto-BPM counter, showing the digital display and sync indicators for precise beat matching.
5. Microphone Section
- كسب الميكروفون: يضبط مستوى إدخال الميكروفون.
- Talk Function: Dims the music volume when the microphone is in use, allowing vocals to be heard clearly.
6. Monitoring Section
- مستوى الهواتف: يضبط مستوى صوت مخرج سماعة الرأس.
- وضع المراقبة: Selects what is heard in the headphones (Cue, Master, or Split).
- ينقسم: Divides the headphone output, sending Cue to one ear and Master to the other.
7. Master Output Controls
- Master Balance: Adjusts the left/right balance of the main output.
- مستوى الماجستير: يتحكم في مستوى الصوت الإجمالي للمخرج الرئيسي.
- مستوى المقصورة: Controls the volume of the monitor output.
8. XPQ Surround
The XPQ Surround feature enhances the stereo image, providing a wider and more immersive sound experience. Adjust the Level knob to control the intensity of the effect and use the XPQ ON button to activate/deactivate it.

Figure 5: Close-up of the XPQ Surround control knob and activation button, illustrating the spatial enhancement feature.
صيانة
1. التنظيف
Regularly clean the mixer's surface with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the finish and controls. For stubborn dirt, a slightly damp يمكن استخدام القماش، ثم تجفيفه على الفور.
2. Fader Care
The INFINIUM 'Contact-Free' VCA Crossfader is designed for longevity. Avoid applying excessive force or introducing liquids/debris into the fader mechanism. If fader performance degrades, consult a qualified service technician.
3. التخزين
عند عدم الاستخدام، يُحفظ الخلاط في مكان بارد وجاف، بعيدًا عن أشعة الشمس المباشرة ودرجات الحرارة القصوى. عند النقل، استخدم وسائل الحماية المناسبة.asing.
استكشاف الأخطاء وإصلاحها
- لا يوجد إخراج صوت:
- Check all audio cable connections (inputs, master output, booth output).
- Ensure the mixer is powered on and the Master Level and Channel Faders are raised.
- Verify that the correct input source is selected for each channel.
- Check the volume levels on your ampمكبر صوت أو مكبرات صوت تعمل بالطاقة.
- الصوت المشوه:
- Reduce the Gain levels on individual channels and the Master Level.
- Ensure input sources are not overdriving the mixer.
- تحقق من وجود كابلات تالفة.
- USB Audio Not Working:
- تأكد من توصيل كابل USB بشكل آمن بكل من الخلاط والكمبيوتر.
- Verify that the DJX900USB is selected as the audio input/output device in your computer's sound settings or DAW software.
- Restart your computer and the mixer.
- عداد نبضات القلب في الدقيقة غير دقيق:
- The auto-BPM counter works best with clear, rhythmic audio. Complex or unstructured audio may result in less accurate readings.
- Ensure the signal level for the channel is adequate.
تحديد
| ميزة | مواصفة |
|---|---|
| وزن العنصر | 8.16 رطل (3.7 كجم) |
| أبعاد المنتج | 14.57 × 12.6 × 4.21 بوصة (370 × 320 × 107 مم) |
| عدد القنوات | 5 |
| Crossfader Type | INFINIUM 'Contact-Free' VCA Optical Crossfader |
| التأثيرات الرقمية | 24-bit with advanced parameter control |
| واجهة USB | Built-in for recording and playback (PC/Mac compatible, no drivers required) |
| BPM عداد | Intelligent dual auto-BPM counter with time and beat sync display |
| مصدر الطاقة | طاقة التيار المتردد |
| لون | أسود |
ماذا يوجد في الصندوق
The Behringer PRO MIXER DJX900USB package typically includes:
- Behringer PRO MIXER DJX900USB
- كابل الطاقة
- دليل المستخدم (هذا المستند)
- Optical VCA Crossfader (pre-installed)
- Digital Effects and USB Interface (integrated)





